音标：[ 'rəulə ] 发音:
- Great rollers make vessels play pendulum .
- You can rent roller skates at the skating arena .
- Roller mills grind essentially by crushing and attrition .
- Mirrors attached to the rollers form part of an optical system .
- Coarse material entering the mill is crushed between the ring and rollers .
- Although the tide was going out, there were few slow rollers .
- The roller supports at a and b prevent transition in the vertical direction but allow rotation .
- Large sections of bridge deck are pushed out over the piers on rollers or sliding teflon bearings .
- The road is compacted by the traffic if there is not enough money to allow a road roller to be used .
- When thrust must be accepted, the tapered roller bearing of the type sketched in fig. 9. 3(b) is employed .
- a grounder that rolls along the infield
- pigeon that executes backward somersaults in flight or on the ground
同义词：tumbler, tumbler pigeon,
- Old World bird that tumbles or rolls in flight; related to kingfishers
- a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it; "a woman with her head full of curlers is not a pretty sight"
同义词：curler, hair curler, crimper,
- a cylinder that revolves
- a small wheel without spokes (as on a roller skate)
- a long heavy sea wave as it advances towards the shore
同义词：roll, rolling wave,
- rollerとは意味：roller n. ローラー; ころがる人; (打ち寄せる)大波. 【＋動詞】 ◆Rollers were crashing loudly on the beach. 大波が浜辺で大きな音を立てて砕けていた ◆rollers surging in from the ocean 大洋から押し寄せる大波. 【動詞＋】 ◆ink (up) a roller (印刷の)ローラーにインクを(たっぷり)塗る....
The rollers are an Old World family, Coraciidae, of near passerine birds. The group gets its name from the aerial acrobatics some of these birds perform during courtship or territorial flights.
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